Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Category
Browse metamorphic, likely sedimentary with quartz veins specimens identified by the Rock Identifier community.
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Specular Hematite
Hematite (Fe2O3)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Amethyst
Quartz (SiO2) variety
Banded Calcite (often sold as 'Mexican Onyx')
Calcite (Calcium Carbonate, CaCO3)
Rose Quartz
Rose Quartz (SiO2)
Greenschist
Greenschist (Major minerals include Chlorite, Actinolite, and Epidote)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix
Chert with Quartz Veining
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Muscovite Schist with Quartz
Mica Schist (KAl2(AlSi3O10)(OH)2)
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Chert (Quartz Variety)
Silicon Dioxide (SiO2)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Corundum
Corundum (Al2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Epidote (with Quartz and Feldspar)
Epidote (unakalite/unite), Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
Zebra Jasper
Silicon Dioxide (SiO2) - Macro-crystalline Quartz/Chert with impurities
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
Milky Quartz Pebbles
Silicon Dioxide (SiO2)
Prasiolite (Green Quartz)
Silicon Dioxide (SiO2) with iron impurities
Ferruginous Quartz
Iron-stained Quartz (SiO2 with Fe2O3 impurities)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Quartzite with Quartz Veining
Quartzite (consisting primarily of SiO2)
Chert (with Fossiliferous Silicification)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky/Rose Quartz variety)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Smoky Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Sodalite (blue beads) and Clear Quartz (clear beads)
Sodalite: Na4Al3Si3O12Cl; Quartz: SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Citrine (Heat-treated or Natural Quartz)
Silicon Dioxide (SiO2)
Gold
Native Gold (Au)
Smoky Quartz
Silicon Dioxide (SiO2)
White Calcite
Calcium Carbonate (CaCO3)
Quartz Pebble
Silicon Dioxide (SiO2)